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Topic: New Madrid Earthquake

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  New Madrid Seismic Zone - Wikipedia, the free encyclopedia
The New Madrid fault system was responsible for the 1812 New Madrid Earthquake and has the potential to produce damaging earthquakes on an average of every 300 to 500 years.
Earthquake of January 23, 1812, 1500 UTC (9 a.m.); 7.6 magnitude; epicenter in Missouri Bootheel.
Earthquake of February 7, 1812 (the New Madrid Earthquake), 0945 UTC (4:45 a.m.); 7.9 magnitude; epicenter near New Madrid, Missouri.
en.wikipedia.org /wiki/New_Madrid_Fault_Zone   (1280 words)

 New Madrid Earthquake Information Pages
New Madrid was the closest settlement to the epicenters of the 1811-1812 quakes.
The largest earthquakes to have occurred since then were on January 4, 1843 and October 31, 1895 with magnitude estimates of 6.3 and 6.7.
The potential for the recurrence of large devastating earthquakes, such as the 1811-1812 series of events, and the effects on heavily populated cities within and adjacent to the New Madrid Seismic Zone has sparked a great deal of ongoing research concerning mitigation and hazard reduction of possible future earthquakes.
www.science.siu.edu /geology/quakes/nmadrid.html   (718 words)

 The Mississippi Valley-"Whole Lotta Shakin' Goin' On"
For example, the San Francisco, California, earthquake of 1906 (magnitude 7.8) was felt 350 miles away in the middle of Nevada, whereas the New Madrid earthquake of December 1811 (magnitude 8.0) rang church bells in Boston, Massachusetts, 1,000 miles away.
Earthquakes of moderate magnitude occur much more frequently than powerful earthquakes of magnitude 8 to 9; the probability of a moderate earthquake occurring in the New Madrid seismic zone in the near future is high.
Strong earthquakes in the New Madrid seismic zone are certain to occur in the future.
quake.wr.usgs.gov /prepare/factsheets/NewMadrid   (1128 words)

 NEW MADRID EARTHQUAKE OF 1811   (Site not responding. Last check: 2007-11-03)
A series of earthquakes that occurred in 1811-1812 near New Madrid, Mo. were the most widely felt earthquakes recorded in U.S. history.
The New Madrid seismic zone, which is a result of the New Madrid quake, is a series of faults beneath the continental crust in a weak spot known as the Reelfoot Rift.
The people of the New Madrid area are taking precautionary methods to alleviate as many risk factors as possible from future seismic events such as the great "1811" quake.
www.angelfire.com /ga/jjperry/madrid.html   (336 words)

 The New Madrid Seismic Zone.
The highest earthquake risk in the United States outside the West Coast is along the New Madrid Fault.
Earthquake probabilities for known active faults always increase with time, because stresses within the earth slowly and inexorably mount year by year until the rocks reach there limits, and sudden rupture becomes inevitable.
The Richter scale of earthquake magnitude is a measure of the energy released at the source of an earthquake deep within the earth.
www2.semo.edu /ces/CES2.HTML   (871 words)

 New Madrid Earthquakes
The New Madrid Seismic Zone is the most active earthquake region in the United States east of the Rocky Mountains.
To describe the nature of earthquake hazards in the area, one must examine the largest recorded earthquakes to hit the Mew Madrid fault, which are the quakes of 1811-12.
New buildings are now having to be built according to tougher standards, and scientists are redoubling their efforts at studying the New Madrid fault to attempt to come up with a more accurate time schedule for when the big one will strike again.
www.owlnet.rice.edu /~geol108/mceuen/nmquakes   (1262 words)

 Scientific Probabilities   (Site not responding. Last check: 2007-11-03)
Three earthquakes that occurred in 1811 and 1812 near New Madrid, MO are among the Great earthquakes of known history, affecting the topography more than any other earthquake on the North American continent.
The probability for an earthquake of magnitude 6.0 or greater is significant in the near future, with a 50% chance by the year 2000 and a 90% chance by the year 2040.
The next time the New Madrid Fault produces such a quake, it is estimated 60 percent of memphis will be devastated, leaving $50 Billion in damage and thousands of dead in its wake.
asms.k12.ar.us /armem/richards/science.htm   (372 words)

 New Madrid Seismic Zone - Home
The New Madrid earthquake of 1811 was the most cataclysmic event that the United States has ever experienced.
The New Madrid seismic zone is located in the middle of the country, running basically in a line from southern Illinois through New Madrid, Missouri and ending in east central Arkansas.
Those earthquakes rang bells in Boston Massachusetts and were felt as far away as Canada.
newmadridfaultzone.com   (305 words)

 National Geographic News @ nationalgeographic.com   (Site not responding. Last check: 2007-11-03)
The object of concern was a predicted replay of a series of stupendously violent earthquakes that took place during the winter of 1811-1812 along the New Madrid Fault, an ancient 150-mile (240- kilometer) underground scar that runs from Arkansas to southern Illinois.
Major earthquakes east of the Rockies occur less frequently per century than they do on the West Coast, which is nearer the edges of two continental plates rubbing against each other, causing many more disturbances.
The New Madrid scare was based on the prediction of a single climatologist in New Mexico.
news.nationalgeographic.com /news/2000/12/1222_newmadrid.html   (1270 words)

 ScienceDaily: Unearthing Explanations For New Madrid Earthquakes   (Site not responding. Last check: 2007-11-03)
The New Madrid seismic zone, which is roughly at the juncture of Missouri, Kentucky, Arkansas and Tennessee near the Mississippi River, is unusual because most earthquakes occur at the edges of rigid tectonic plates that essentially float on the fluid-like interior of the Earth.
New Madrid Fault Study In Midwest Indicates Large Earthquake A Threat (November 5, 1999) -- The potential for a large earthquake along the New Madrid seismic zone in the central Mississippi Valley should be considered a serious threat, according to a new study spearheaded by a University of...
Earthquake liquefaction -- Earthquake liquefaction, often referred to simply as liquefaction, is the process by which saturated, unconsolidated soil or sand is converted into a suspension during an earthquake.
www.sciencedaily.com /releases/2006/02/060221084236.htm   (1844 words)

 CNN.com - Scientists: Quake could devastate America's heartland - Apr 18, 2006
During the winter of 1811-1812, at least three powerful earthquakes (believed to be magnitude 8 or above) and thousands of aftershocks were felt in America's heartland, in what's known as the New Madrid Seismic Zone.
The New Madrid area experiences about 100 earthquakes a year, but they are small: magnitudes 1, 2 or 3.
While there is still no way to predict earthquakes, advances in seismology could definitely play a part in mitigating the damage from a powerful quake in the New Madrid Seismic Zone.
www.cnn.com /2006/TECH/science/04/18/new.madrid/index.html   (898 words)

A significant hazard in the New Madrid region is a type of soil failure called liquefaction, which in 1811 and 1812 affected a region from south of Memphis to St. Louis.
One characteristic of New Madrid earthquakes is particularly important to highlight.
Throughout the New Madrid seismic zone, there are numerous unreinforced masonry buildings that are particularly vulnerable to earthquake shaking.
www.doi.gov /ocl/2006/RespondingToNewMadridEarthquake.htm   (736 words)

 About The New Madrid Fault
The most recent registering 4.3 along the New Madrid Fault on Thanksgiving evening, 1996, which was felt by citizens in the states of Missouri, Arkansas, Tennessee and Kentucky, Illinois and Mississippi.
A New Madrid Fault rupture this size would be felt throughout half the United States and damage 20 states or more.
Earthquake probabilities for known active faults always increase with time, because stresses within the earth slowly and inexorably mount, year by year, until the rocks can take no more, and sudden rupture becomes inevitable.
www.scchealth.org /docs/ems/docs/prepare/newMadrid.html   (801 words)

 New Madrid Fault Line Earthquakes: Intro
The famous earthquakes of the New Madrid region began early on December 16th, 1811.
The tectonic plate under the New Madrid area was almost pulled apart perhaps more than once, hundreds of millions of years ago.
If it had been separated, the New Madrid area might be on the Atlantic seaboard, and the southeastern US might be attached to Africa.
www.showme.net /~fkeller/quake   (1168 words)

 The Great New Madrid Earthquake   (Site not responding. Last check: 2007-11-03)
The Great New Madrid Earthquakes were one of the most extraordinary geologic events in recorded history and remains as one of the most violent earthquakes that occurred anywhere in the world.
The terrified residents of New Madrid who watched the spectacle said the earth literally swallowed the river in huge chasms which then slammed shut, the water shooting hundreds of feet into the air like fountains.
Indeed, the New Madrid area has the most earthquakes east of the Rocky Mountains, with tremors at least every 2 minutes, though only a fraction of those can be felt by humans.
www.tuppenceworth.ie /biglife/quake.html   (1265 words)

 New Madrid Earthquake Seismic Zone Maps p3
In recent years, numerous minor earthquakes or "microearthquakes" have revealed the presence of three deep subsurface faults in the New Madrid area.
Magnetic measurements and studies of seismic waves that pass through the subsurface bedrock of the region indicate that the rocks around the New Madrid system have not been overly deformed over the past 300 million years.
Currently, we don't know if the periodic earthquakes in the New Madrid fault system are related to a slow reactivation of the Reelfoot Rift zone or not.
www.showme.net /~fkeller/quake/maps3.htm   (524 words)

 New Madrid Earthquake of 1811-1812
In 1811 and 1812 the inhabitants of New Madrid District experienced a series of the most terrific earthquakes that have ever occurred on the American continent.
The awful darkness of the atmosphere which, as formerly, was saturated with sulphurous vapor, and the violence of the tempestuous thundering noise that accompanied it, together with all of the other phenomena mentioned as attending the former ones, formed a scene, the description of which would require the most sublimely fanciful imagination.
I have now, Sir, finished my promised description of the earthquake, imperfect it is true, but just as it occurred to my memory, many of, and most of the truly awful scenes having occurred three or four years ago.
freepages.genealogy.rootsweb.com /~cramsey/nwmadrid.html   (952 words)

 The New Madrid Earthquake   (Site not responding. Last check: 2007-11-03)
This earthquake, called the New Madrid Earthquake because of its primary location on the New Madrid Fault, near New Madrid, Missouri.
From the effects of the 1811-1812 earthquakes, it can be estimated that they had a magnitude of 8.0 or higher on the not yet invented Richter scale.
Large areas sank into the earth, new lakes were formed, and the Mississippi River changed its course due to the earthquakes.
asms.k12.ar.us /armem/richards   (83 words)

 Newspaper Accounts of the New Madrid Earthquake
On enquiry at New Madrid, a small town about 70 miles below the mouth of Ohio, they found that the chimnies of almost all the houses were thrown down, and the inhabitants considerably alarmed.
According to the hypothesis of some, earthquakes are occasioned by subterranean fires throwing down the arches or vaults of the earth; according to others the rarefaction of the abyss waters, interior combustion and fermentation, volcanic operations, and lately by the electric fluid.
The most rational hypothesis to me seems to be, that earthquakes are produced by an ____ of terrestrial and atmospheric electricity, as by the former the heaving of the ground upwards is easily explained as the corruscations and explosions which sometimes precede and accompany earthquakes may be accounted for by the influence of the other.
www.rootsweb.com /~monewmad/nm-history/paper-1.htm   (1657 words)

 Newspaper Accounts of the New Madrid Earthquake
The Earthquake of the 16th of December last was felt as far North as Charlestown, New Hampshire.
We have the following description of the Earthquake from gentlemen who were on board a large barge, and lay an anchor in the Mississippi a few leagues below New Madrid, on the night of the 15th of December.
About 2 o'clock all hands were awakened by the first shock; the impression was, that the barge had dragged her anchor and was grounding on gravel; such, were the feelings for 60 or 80 seconds, when the shock subsided.
www.rootsweb.com /~monewmad/nm-history/paper-2.htm   (2605 words)

 Tecumseh And The New Madrid Earthquake - Above Top Secret Conspiracy Community
New Madrid was destroyed and the tens of thousands of acres of land, including virtually all that was owned by Simon Kenton, vanished forever; that which remained was ugly and austere.
This was the earthquake which occurred where no tremor had ever been recorded before; where there was no scientific explanation for such a thing happening; where no one cold possibly have anticipated or predicted that an earthquake could happen.
If you're interested, the live latest earthquakes on earthquake.usgs.gov do show some in that area, and obviously some in yellowstone, and as I type there are a few more than usual in California, and also quite a few in the Aleutian Islands off Alaska (I think thats their name).
www.abovetopsecret.com /forum/thread152009/pg1   (3160 words)

 Earthquake Museum-1811 - 1812 New Madrid Earthquakes   (Site not responding. Last check: 2007-11-03)
The New Madrid quakes were actually three great quakes, each of which probably measured over 8.0 on the Richter Scale.
Most earthquakes are on the edges of tectonic plates, as they push or slide by other plates.
This US Geological Survey page has good descriptions of the New Madrid quake and evaluation of risk from future quakes in the Mississippi Valley, especially in view of the fact that millions of people now live there with little appreciation of the danger from earthquakes.
www.olympus.net /personal/gofamily/quake/famous/madrid.html   (295 words)

 New Madrid earthquake - Wikipedia, the free encyclopedia
This earthquake was preceded by three other major quakes: two on December 16, 1811, and one on January 23, 1812.
The earthquakes are therefore to be traced to seismic activity 5 to 25 km below the crust of the earth.
Understanding of this earthquake zone is growing only slowly, in comparison to awareness of the San Andreas fault, and must be increased in the face of an ongoing earthquake danger that affects the East and Midwest of the USA.
en.wikipedia.org /wiki/New_Madrid_earthquake   (1477 words)

 Warning issued of potential for catastrophic New Madrid fault earthquake
Earthquakes are a common part of life in California.
But in the Midwest, people rarely think of the large New Madrid fault zone underneath their feet.
Gillespie presented the paper, "Dynamics of Earthquake Safety and Economic Development," on February 20 at the annual meeting of the American Association for the Advancement of Science, held Feb. 16th-20th in St. Louis.
www.continuitycentral.com /news02370.htm   (555 words)

 Earthquake New Madrid Missouri   (Site not responding. Last check: 2007-11-03)
The earthquake had a magnitude of 6.5 and there were three earthquakes within one year.
Six hours after the first earthquake there was a huge and destructive aftershock which caused damage to only a few structures.
The second earthquake occurred on January 23rd and the third occurred February 7th.
www.edu.pe.ca /kish/Grassroots/nature/Madrid.htm   (178 words)

 FEMA: New Madrid earthquake preparedness is agency priority North County Times - Nation / World -   (Site not responding. Last check: 2007-11-03)
LOUIS -- Preparing for a catastrophic earthquake along the New Madrid fault is a priority, a FEMA official said Friday before a congressional field hearing on government readiness to handle natural disasters.
FEMA, which was sharply criticized for its handling of the aftermath of Hurricane Katrina, began in earnest in December to prepare for the possibility of an earthquake along the New Madrid fault.
He said a strong earthquake could disrupt the flow of commodities by underground pipeline, rail, barge and highway; halt the flow of food exports, fuel oil and coal outside the region; cripple FedEx's hub in Memphis, Tenn.; and block routes for emergency services.
www.nctimes.com /articles/2006/02/25/news/nation/16_58_312_24_06.txt   (1002 words)

 Amazon.com: The next New Madrid earthquake: A survival guide for the Midwest (Shawnee books): Books: William Atkinson   (Site not responding. Last check: 2007-11-03)
The dangerous propensities of the midcontinental earthquake zone known by the name of the New Madrid fault system are part and parcel of life in the area where the Ohio River joins the Mississippi river system.
In 1811 and 1812, a bone-shattering series of earthquakes took place here, three of which are estimated at over 8.3 on the Richter scale, devastating this region, creating new lakes, making the Mississippi run backwards for a time, raising hills, and changing river courses.
Make no mistake, the New Madrid earthquakes of the early nineteenth century are not the last seismic events in this region.
www.amazon.com /next-New-Madrid-earthquake-survival/dp/0809313197   (900 words)

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